Annotation of loncom/homework/structuretags.pm, revision 1.459
1.34 albertel 1: # The LearningOnline Network with CAPA
2: # definition of tags that give a structure to a document
1.74 albertel 3: #
1.459 ! bisitz 4: # $Id: structuretags.pm,v 1.458 2009/10/16 17:23:51 bisitz Exp $
1.74 albertel 5: #
6: # Copyright Michigan State University Board of Trustees
7: #
8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
9: #
10: # LON-CAPA is free software; you can redistribute it and/or modify
11: # it under the terms of the GNU General Public License as published by
12: # the Free Software Foundation; either version 2 of the License, or
13: # (at your option) any later version.
14: #
15: # LON-CAPA is distributed in the hope that it will be useful,
16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18: # GNU General Public License for more details.
19: #
20: # You should have received a copy of the GNU General Public License
21: # along with LON-CAPA; if not, write to the Free Software
22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
23: #
24: # /home/httpd/html/adm/gpl.txt
25: #
26: # http://www.lon-capa.org/
27: #
1.254 www 28: ###
1.54 www 29:
1.435 jms 30: =pod
31:
32: =head1 NAME
33:
34: Apache::structuretags
35:
36: =head1 SYNOPSIS
37:
38:
39: This is part of the LearningOnline Network with CAPA project
40: described at http://www.lon-capa.org.
41:
42:
43: =head1 NOTABLE SUBROUTINES
44:
45: =over
46:
47: =item
48:
49: =back
50:
51: =cut
52:
1.133 sakharuk 53:
1.1 albertel 54: package Apache::structuretags;
55:
56: use strict;
57: use Apache::lonnet;
1.101 sakharuk 58: use Apache::File();
1.147 www 59: use Apache::lonmenu;
1.210 albertel 60: use Apache::lonlocal;
1.231 sakharuk 61: use Apache::lonxml;
1.434 foxr 62: use Apache::londefdef;
1.338 albertel 63: use Apache::lonenc();
1.267 albertel 64: use Time::HiRes qw( gettimeofday tv_interval );
1.356 www 65: use lib '/home/httpd/lib/perl/';
66: use LONCAPA;
67:
1.78 harris41 68: BEGIN {
1.397 albertel 69: &Apache::lonxml::register('Apache::structuretags',('block','languageblock','translated','instructorcomment','while','randomlist','problem','library','web','tex','part','preduedate','postanswerdate','solved','notsolved','problemtype','startouttext','endouttext','simpleeditbutton','definetag'));
1.10 albertel 70: }
71:
72: sub start_web {
1.326 albertel 73: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.383 albertel 74: if ($target ne 'edit' && $target ne 'modified') {
75: my $bodytext=&Apache::lonxml::get_all_text("/web",$parser,$style);
76: if ($target eq 'web' || $target eq 'webgrade') {
77: return $bodytext;
78: }
79: } elsif ($target eq "edit" ) {
80: my $bodytext =
81: &Apache::lonxml::get_all_text_unbalanced("/web",$parser);
82: my $result = &Apache::edit::tag_start($target,$token);
83: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
84: return $result;
85: } elsif ( $target eq "modified" ) {
86: return $token->[4].&Apache::edit::modifiedfield("/web",$parser);
1.159 albertel 87: }
88: return '';
1.10 albertel 89: }
90:
91: sub end_web {
1.44 ng 92: return '';
1.10 albertel 93: }
94:
95: sub start_tex {
1.326 albertel 96: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.198 sakharuk 97: my $result='';
1.383 albertel 98: if ($target ne 'edit' && $target ne 'modified') {
99: my $bodytext=&Apache::lonxml::get_all_text("/tex",$parser,$style);
100: if ($target eq 'tex') {
1.434 foxr 101:
102: # If inside a table, occurrences of \\ must be removed;
103: # else the table blows up.
104:
105: if (&Apache::londefdef::is_inside_of($tagstack, "table")) {
106: $bodytext =~ s/\\\\//g;
107: }
1.432 foxr 108: return $bodytext.'{}';
1.383 albertel 109: }
110: } elsif ($target eq "edit" ) {
111: my $bodytext =
112: &Apache::lonxml::get_all_text_unbalanced("/tex",$parser);
113: my $result = &Apache::edit::tag_start($target,$token);
114: $result .= &Apache::edit::editfield($token->[1],$bodytext,'',80,1);
115: return $result;
116: } elsif ( $target eq "modified" ) {
117: return $token->[4].&Apache::edit::modifiedfield("/tex",$parser);
1.159 albertel 118: }
1.198 sakharuk 119: return $result;;
1.10 albertel 120: }
121:
122: sub end_tex {
1.44 ng 123: return '';
1.9 albertel 124: }
125:
1.400 albertel 126: sub homework_js {
127: return &Apache::loncommon::resize_textarea_js().
1.416 raeburn 128: &setmode_javascript().
1.400 albertel 129: <<'JS';
130: <script type="text/javascript">
131: function setSubmittedPart (part) {
132: this.document.lonhomework.submitted.value="part_"+part;
133: }
134:
135: function image_response_click (which, e) {
136: init_geometry();
137: if (!e) { e = window.event; } //IE
138: var input_element = document.lonhomework.elements[which];
1.401 albertel 139: var token_element = document.lonhomework.elements[which+'_token'];
1.400 albertel 140: var token = token_element.value;
1.401 albertel 141: var img_element = document.getElementById(which+'_imageresponse');
1.400 albertel 142: var x= e.clientX-getX(img_element)+Geometry.getHorizontalScroll();
143: var y= e.clientY-getY(img_element)+Geometry.getVerticalScroll();
144: var click = x+':'+y;
145: input_element.value = click;
146: img_element.src = '/adm/randomlabel.png?token='+token+'&clickdata='+click;
147: }
1.416 raeburn 148:
1.400 albertel 149: </script>
150: JS
151: }
152:
1.416 raeburn 153: sub setmode_javascript {
154: return <<"ENDSCRIPT";
155: <script type="text/javascript">
156: function setmode(form,probmode) {
157: form.problemmode.value = probmode;
158: form.submit();
159: }
160: </script>
161: ENDSCRIPT
162: }
163:
1.48 albertel 164: sub page_start {
1.345 albertel 165: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$name,
166: $extra_head)=@_;
1.159 albertel 167: my %found;
1.207 albertel 168: foreach my $taginside (@$tagstack) {
1.159 albertel 169: foreach my $taglookedfor ('html','body','form') {
170: if ($taginside =~ /^$taglookedfor$/i) {$found{$taglookedfor} = 1;}
171: }
172: }
173:
1.343 albertel 174: if ($target eq 'tex') {
175: return
176: &Apache::londefdef::start_html($target,$token,$tagstack,
177: $parstack,$parser,$safeeval);
178: }
179:
1.400 albertel 180: $extra_head .= &homework_js();
1.374 albertel 181:
1.434 foxr 182: if ($env{'environment.wysiwygeditor'} eq 'on') {
183: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("FCKEditMathPopup");
184: } else {
185: $extra_head .= &Apache::lonhtmlcommon::dragmath_js("EditMathPopup");
1.425 raeburn 186: }
187:
1.344 albertel 188: my %body_args;
189: if (defined($found{'html'})) {
190: $body_args{'skip_phases'}{'head'}=1;
191: } else {
1.343 albertel 192:
1.345 albertel 193: $extra_head .= &Apache::lonhtmlcommon::spellheader();
1.343 albertel 194:
1.379 albertel 195: $extra_head .= &Apache::londefdef::generate_css_links();
196:
1.384 albertel 197: if ($env{'request.state'} eq 'construct') {
1.343 albertel 198: $extra_head.=&Apache::edit::js_change_detection().
199: "<script type=\"text/javascript\">\n".
200: "if (typeof swmenu != 'undefined') {swmenu.currentURL=null;}\n".
201: &Apache::loncommon::browser_and_searcher_javascript().
202: "\n</script>\n";
203: }
1.159 albertel 204: }
1.343 albertel 205:
1.446 bisitz 206: my $pageheader = '';
1.344 albertel 207: if (defined($found{'body'})) {
208: $body_args{'skip_phases'}{'body'}=1;
209: } elsif (!defined($found{'body'})
210: && $env{'request.state'} eq 'construct') {
1.343 albertel 211: if ($target eq 'web' || $target eq 'edit') {
1.402 albertel 212: if ($env{'environment.remote'} ne 'off') {
213: $body_args{'only_body'} = 1;
214: }
1.450 bisitz 215: # Breadcrumbs for Construction Space
216: &Apache::lonhtmlcommon::clear_breadcrumbs();
217: &Apache::lonhtmlcommon::add_breadcrumb({
218: 'text' => 'Construction Space',
219: 'href' => &Apache::loncommon::authorspace(),
220: });
221: # FIXME Where are we?
222: # &Apache::lonhtmlcommon::add_breadcrumb({
223: # 'text' => 'Problem Editing', # 'Problem Testing'
224: # 'href' => '',
225: # });
226: $pageheader = &Apache::lonhtmlcommon::breadcrumbs()
1.446 bisitz 227: .&Apache::loncommon::head_subbox(
228: &Apache::loncommon::CSTR_pageheader());
1.297 albertel 229: }
1.272 albertel 230: } elsif (!defined($found{'body'})) {
1.343 albertel 231: my %add_entries;
1.159 albertel 232: my $background=&Apache::lonxml::get_param('background',$parstack,
233: $safeeval);
1.343 albertel 234: if ($background ne '' ) {
235: $add_entries{'background'} = $background;
236: }
1.344 albertel 237:
1.290 albertel 238: my $bgcolor=&Apache::lonxml::get_param('bgcolor',$parstack,
239: $safeeval);
1.446 bisitz 240: if ($bgcolor eq '' ) { $bgcolor = '#FFFFFF'; }
1.344 albertel 241:
1.446 bisitz 242: $body_args{'bgcolor'} = $bgcolor;
243: # $body_args{'no_title'} = 1;
244: $body_args{'force_register'} = 1;
245: $body_args{'add_entries'} = \%add_entries;
246: if ($env{'environment.remote'} eq 'off'
247: && $env{'request.state'} eq 'construct') {
248: $body_args{'only_body'} = 1;
249: }
1.344 albertel 250: }
1.365 albertel 251: $body_args{'no_auto_mt_title'} = 1;
1.344 albertel 252: my $page_start = &Apache::loncommon::start_page($name,$extra_head,
253: \%body_args);
1.446 bisitz 254: $page_start .= $pageheader;
1.344 albertel 255: if (!defined($found{'body'})
256: && $env{'request.state'} ne 'construct'
257: && ($target eq 'web' || $target eq 'webgrade')) {
258:
1.367 albertel 259: my ($symb,undef,undef,undef,$publicuser)= &Apache::lonnet::whichuser();
1.457 bisitz 260: if ($symb eq '' && !$publicuser) {
261: $page_start .= '<p class="LC_info">'
262: .&mt('Browsing resource, all submissions are temporary.')
263: .'</p>';
264: }
1.344 albertel 265: }
266:
1.409 albertel 267: if (!defined($found{'body'}) && $env{'request.state'} ne 'construct') {
1.343 albertel 268: $page_start .= &Apache::lonxml::message_location();
1.159 albertel 269: }
1.344 albertel 270:
1.159 albertel 271: my $form_tag_start;
272: if (!defined($found{'form'})) {
1.337 albertel 273: $form_tag_start='<form name="lonhomework" enctype="multipart/form-data" method="post" action="';
1.455 droeschl 274: my $uri = Apache::loncommon::inhibit_menu_check(
275: &Apache::lonenc::check_encrypt($env{'request.uri'}));
1.327 albertel 276: $form_tag_start.=$uri.'" ';
277: if ($target eq 'edit') {
278: $form_tag_start.=&Apache::edit::form_change_detection();
279: }
1.368 albertel 280: $form_tag_start.='>'."\n";
1.355 albertel 281:
282: my $symb=&Apache::lonnet::symbread();
283: if ($symb =~ /\S/) {
284: $symb=
285: &HTML::Entities::encode(&Apache::lonenc::check_encrypt($symb));
286: $form_tag_start.=
1.368 albertel 287: "\t".'<input type="hidden" name="symb" value="'.$symb.'" />'."\n";
1.355 albertel 288: }
1.159 albertel 289: }
1.343 albertel 290: return ($page_start,$form_tag_start);
1.105 albertel 291: }
292:
1.141 matthew 293: #use Time::HiRes();
1.105 albertel 294: sub get_resource_name {
1.159 albertel 295: my ($parstack,$safeeval)=@_;
1.388 foxr 296: my $name;
1.204 albertel 297: if (defined($Apache::lonhomework::name)) {
1.388 foxr 298: $name = $Apache::lonhomework::name;
299: } else {
300: my ($symb)=&Apache::lonnet::whichuser();
1.392 albertel 301: $name=&Apache::lonnet::gettitle($symb);
1.388 foxr 302: if ($name eq '') {
303: $name=&Apache::lonnet::EXT('resource.title');
304: if ($name eq 'con_lost') { $name = ''; }
305: }
306: if ($name!~/\S+/) {
307: $name=$env{'request.uri'};
308: $name=~s-.*/([^/]+)$-$1-;
309: }
310: # The name has had html tags escaped:
311:
312: $name=~s/</</gs;
313: $name=~s/>/>/gs;
314:
315: $Apache::lonhomework::name=$name;
1.204 albertel 316: }
1.159 albertel 317: return $name;
1.105 albertel 318: }
319:
320: sub setup_rndseed {
1.159 albertel 321: my ($safeeval)=@_;
322: my $rndseed;
1.367 albertel 323: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 324: if ($env{'request.state'} eq "construct"
325: || $symb eq ''
326: || $Apache::lonhomework::type eq 'practice'
327: || $Apache::lonhomework::history{'resource.CODE'}) {
1.316 www 328: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.317 albertel 329: ['rndseed']);
1.284 albertel 330: $rndseed=$env{'form.rndseed'};
1.159 albertel 331: if (!$rndseed) {
1.162 albertel 332: $rndseed=$Apache::lonhomework::history{'rndseed'};
333: if (!$rndseed) {
334: $rndseed=time;
335: }
1.284 albertel 336: $env{'form.rndseed'}=$rndseed;
1.162 albertel 337: }
1.374 albertel 338: if ( ($env{'form.resetdata'} eq &mt('New Problem Variation')
339: && $env{'form.submitted'} eq 'yes') ||
1.284 albertel 340: $env{'form.newrandomization'} eq &mt('New Randomization')) {
1.190 albertel 341: srand(time);
342: $rndseed=int(rand(2100000000));
1.284 albertel 343: $env{'form.rndseed'}=$rndseed;
344: delete($env{'form.resetdata'});
345: delete($env{'form.newrandomization'});
1.159 albertel 346: }
1.187 albertel 347: if (defined($rndseed) && $rndseed ne int($rndseed)) {
1.307 albertel 348: $rndseed=join(':',&Apache::lonnet::digest($rndseed));
1.187 albertel 349: }
1.247 albertel 350: if ($Apache::lonhomework::history{'resource.CODE'}) {
351: $rndseed=&Apache::lonnet::rndseed();
352: }
1.221 albertel 353: if ($safeeval) {
354: &Apache::lonxml::debug("Setting rndseed to $rndseed");
1.250 albertel 355: &Apache::run::run('$external::randomseed="'.$rndseed.'";',$safeeval);
1.221 albertel 356: }
1.159 albertel 357: }
358: return $rndseed;
1.105 albertel 359: }
360:
1.268 albertel 361: sub remember_problem_state {
362: return '
1.284 albertel 363: <input type="hidden" name="problemstate" value="'.$env{'form.problemstate'}.'" />
364: <input type="hidden" name="problemtype" value="'.$env{'form.problemtype'}.'" />
365: <input type="hidden" name="problemstatus" value="'.$env{'form.problemstatus'}.'" />';
1.268 albertel 366: }
367:
1.423 www 368: sub problem_edit_buttons {
369: return '
1.408 albertel 370: <div class="LC_edit_problem_discards">
1.416 raeburn 371: <input type="button" name="submitmode" accesskey="d" value="'.&mt('Discard Edits and View').'" '.
1.423 www 372: ' onclick="javscript:setmode(this.form,'."'discard'".')" />
1.416 raeburn 373: <input '.&Apache::edit::submit_ask_anyway('setmode(this.form,'."'editxml'".')').' type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" />
1.407 albertel 374: <input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" />
1.408 albertel 375: </div>
376: <div class="LC_edit_problem_saves">
1.416 raeburn 377: <input type="submit" name="submitbutton" accesskey="s" value="'.&mt('Save and Edit').'" />
378: <input type="submit" name="submitbutton" accesskey="v" value="'.&mt('Save and View').'" />
1.423 www 379: </div>';
380: }
381:
382: sub problem_edit_header {
383: return '<input type="hidden" name="submitted" value="edit" /><input type="hidden" name="problemmode" value="edit" />'.
384: &Apache::structuretags::remember_problem_state().'
385: <div class="LC_edit_problem_header">
386: <div class="LC_edit_problem_header_title">
387: '.&mt('Problem Editing').&Apache::loncommon::help_open_menu('Problem Editing','Problem_Editor_XML_Index',5,'Authoring').'
388: </div>'.
389: &problem_edit_buttons().'
1.459 ! bisitz 390: <hr style="clear:both;" />
1.409 albertel 391: '.&Apache::lonxml::message_location().'
1.408 albertel 392: </div>
393: '.
1.458 bisitz 394: '<table border="0" width="100%"><tr><td bgcolor="#F8F8F8">';
1.105 albertel 395: }
396:
397: sub problem_edit_footer {
1.412 albertel 398: return '</td></tr></table><br />
399: <div class="LC_edit_problem_footer">
1.453 bisitz 400: <hr />'.
1.423 www 401: &problem_edit_buttons().'
1.459 ! bisitz 402: <hr style="clear:both;" />
1.412 albertel 403: </div>
404: '.
405:
1.348 albertel 406: &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields()).
1.342 albertel 407: "\n</form>\n".&Apache::loncommon::end_page();
1.105 albertel 408: }
409:
1.235 albertel 410: sub option {
411: my ($value,$name) = @_;
412: my $result ="<option value='".$value."' ";
1.284 albertel 413: if ($env{'form.'.$name} eq $value) {
1.235 albertel 414: $result.=" selected='on' ";
415: }
416: $result.='>';
417: return $result;
418: }
419:
1.105 albertel 420: sub problem_web_to_edit_header {
1.159 albertel 421: my ($rndseed)=@_;
1.406 albertel 422: my $result .= '<div class="LC_edit_problem_header">';
423:
424: if (!$Apache::lonhomework::parsing_a_task) {
425: $result .=
426: '<div class="LC_edit_problem_header_title">'.
427: &mt('Problem Testing').
428: &Apache::loncommon::help_open_topic('Problem_Editor_Testing_Area').
429: '</div>';
430: } else {
431: $result .=
432: '<div class="LC_edit_problem_header_title">'.
433: &mt('Task Testing').
434: '</div>';
435: }
436:
1.315 albertel 437: my $show_all_foils_text =
438: ($Apache::lonhomework::parsing_a_task) ?
1.452 bisitz 439: &mt('Show All Instances')
440: : &mt('Show All Foils');
1.315 albertel 441:
1.452 bisitz 442: my $show_all= '<span class="LC_nobreak"><label for="showallfoils">'
443: .'<input type="checkbox" name="showallfoils"';
1.440 bisitz 444: if (defined($env{'form.showallfoils'})) { $show_all.=' checked="checked"'; }
1.452 bisitz 445: $show_all.= ' /> '.$show_all_foils_text
446: .'</label></span>';
1.406 albertel 447:
448:
1.384 albertel 449:
1.406 albertel 450: $result .= '<div class="LC_edit_problem_header_status_row">';
1.313 albertel 451: if (!$Apache::lonhomework::parsing_a_task) {
452: $result.="
1.406 albertel 453: <div class='LC_edit_problem_header_row1'>
454: <span class=\"LC_nobreak\">
1.405 albertel 455: ".&mt("Problem Status:")."
1.235 albertel 456: <select name='problemstate'>
1.270 albertel 457: <option value=''></option>
1.235 albertel 458: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
459: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
460: ".&option('CANNOT_ANSWER_tries' ,'problemstate').&mt("Open with full tries")."</option>
461: ".&option('CANNOT_ANSWER_correct','problemstate').&mt("Open and correct")."</option>
462: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Answer")."</option>
463: </select>
1.406 albertel 464: </span>
465: <span class=\"LC_nobreak\">
1.405 albertel 466: ".&mt("Problem Type:")."
1.235 albertel 467: <select name='problemtype'>
1.270 albertel 468: <option value=''></option>
1.242 albertel 469: ".&option('exam' ,'problemtype').&mt("Exam Problem")."</option>
1.428 raeburn 470: ".&option('problem','problemtype').&mt("Homework Problem")."</option>
1.242 albertel 471: ".&option('survey' ,'problemtype').&mt("Survey Question")."</option>
1.428 raeburn 472: ".&option('practice' ,'problemtype').&mt("Practice Problem")."</option>
1.235 albertel 473: </select>
1.406 albertel 474: </span>
475: $show_all
476: </div>
477: <div class='LC_edit_problem_header_row2'>
478: <span class=\"LC_nobreak\">
1.405 albertel 479: ".&mt("Feedback Mode:")."
1.235 albertel 480: <select name='problemstatus'>
481: <option value=''></option>
1.242 albertel 482: ".&option('yes','problemstatus').&mt("Show Feedback")."</option>
1.405 albertel 483: ".&option('no', 'problemstatus').&mt("Don't Show Incorect/Correct Feedback")."</option>
484: ".&option('no_feedback_ever', 'problemstatus').&mt("Don't Show Any Feedback")."</option>
1.235 albertel 485: </select>
1.406 albertel 486: </span>
487: ";
488:
1.376 albertel 489: } elsif ($Apache::lonhomework::parsing_a_task) {
490: $result.="
1.406 albertel 491: <div class='LC_edit_problem_header_row1'>
492: <span class=\"LC_nobreak\">
1.405 albertel 493: ".&mt("Problem Status:")."
1.376 albertel 494: <select name='problemstate'>
495: <option value=''></option>
496: ".&option('CLOSED' ,'problemstate').&mt("Closed")."</option>
497: ".&option('CAN_ANSWER' ,'problemstate').&mt("Answerable")."</option>
498: ".&option('WEB_GRADE' ,'problemstate').&mt("Criteria Grading")."</option>
499: ".&option('SHOW_ANSWER' ,'problemstate').&mt("Show Feedback")."</option>
500: </select>
1.406 albertel 501: </span>
502: $show_all
503: ";
504: }
505: $result.='
506: <span class="LC_nobreak">
507: '.&mt('Apply style file: ').'
508: <input type="text" name="style_file" value="'.&HTML::Entities::encode($env{'construct.style'},'"<>&').'" />
509: <a href="javascript:openbrowser(\'lonhomework\',\'style_file\',\'sty\')">'.&mt('Select').'</a>
510: </span>
1.422 www 511: </div>
512: <div class="LC_edit_problem_header_row1">'.
513: &Apache::lonxml::renderingoptions().'
1.406 albertel 514: </div>
515: <input type="submit" name="changeproblemmode" value="'.&mt("Change View").'" />
516: <input type="submit" name="clear_style_file" accesskey="d" value="'.&mt('Show Default View').'" />
517: <input type="submit" name="resetdata" accesskey="r" value="'.&mt('Reset Submissions').'" />
518: </div>
1.453 bisitz 519: <hr />
1.406 albertel 520: <div class="LC_edit_problem_header_randomize_row">
521: <input type="submit" name="newrandomization" accesskey="a" value="'.&mt('New Randomization').'" />
522: <input type="submit" name="changerandseed" value="'.&mt('Change Random Seed To:').'" />
523: <input type="text" name="rndseed" size="10" value="'.
524: $rndseed.'"
525: onchange="javascript:document.lonhomework.changerandseed.click()" />';
526:
527: if (!$Apache::lonhomework::parsing_a_task) {
528: my $numtoanalyze=$env{'form.numtoanalyze'};
529: if (!$numtoanalyze) { $numtoanalyze=20; }
1.408 albertel 530: $result .= '<span class="LC_nobreak">'.
531: &mt('[_1] for [_2] versions.',
1.416 raeburn 532: '<input type="button" name="submitmode" value="'.&mt('Calculate answers').'" '.
1.419 bisitz 533: 'onclick="javascript:setmode(this.form,'."'calcanswers'".')" />'
534: ,'<input type="text" name="numtoanalyze" value="'.
1.408 albertel 535: $numtoanalyze.'" size="5" />').
536: &Apache::loncommon::help_open_topic("Analyze_Problem",'',undef,undef,300).
537: '</span>';
538:
1.313 albertel 539: }
1.406 albertel 540:
541: $result.='
542: </div>
1.453 bisitz 543: <hr />
1.447 bisitz 544: <div>';
1.416 raeburn 545: $result.='<input type="hidden" name="problemmode" value="view" />';
546: $result .= '<input type="button" name="submitmode" accesskey="e" value="'.&mt('Edit').'" '.
547: 'onclick="javascript:setmode(this.form,'."'edit'".')" />';
548: $result .= '<input type="button" name="submitmode" accesskey="x" value="'.&mt('EditXML').'" '.
549: 'onclick="javascript:setmode(this.form,'."'editxml'".')" />';
1.408 albertel 550: $result.='
551: </div>
1.453 bisitz 552: <hr />
1.409 albertel 553: '.&Apache::lonxml::message_location().'
1.406 albertel 554: </div>';
1.159 albertel 555: return $result;
1.48 albertel 556: }
557:
1.65 albertel 558: sub initialize_storage {
1.357 albertel 559: my ($given_symb) = @_;
1.353 albertel 560: undef(%Apache::lonhomework::results);
561: undef(%Apache::lonhomework::history);
1.357 albertel 562: my ($symb,$courseid,$domain,$name) =
1.367 albertel 563: &Apache::lonnet::whichuser($given_symb);
1.353 albertel 564:
565: # anonymous users (CODEd exams) have no data
566: if ($name eq 'anonymous'
567: && !defined($domain)) {
568: return;
569: }
570:
1.333 albertel 571: if ($env{'request.state'} eq 'construct'
572: || $symb eq ''
573: || $Apache::lonhomework::type eq 'practice') {
574:
575: my $namespace = $symb || $env{'request.uri'};
576: if ($env{'form.resetdata'} eq &mt('Reset Submissions') ||
1.374 albertel 577: ($env{'form.resetdata'} eq &mt('New Problem Variation')
578: && $env{'form.submitted'} eq 'yes') ||
1.333 albertel 579: $env{'form.newrandomization'} eq &mt('New Randomization')) {
580: &Apache::lonnet::tmpreset($namespace,'',$domain,$name);
581: &Apache::lonxml::debug("Attempt reset");
582: }
1.159 albertel 583: %Apache::lonhomework::history=
1.333 albertel 584: &Apache::lonnet::tmprestore($namespace,'',$domain,$name);
1.159 albertel 585: my ($temp)=keys %Apache::lonhomework::history ;
586: &Apache::lonxml::debug("Return message of $temp");
587: } else {
588: %Apache::lonhomework::history=
589: &Apache::lonnet::restore($symb,$courseid,$domain,$name);
590: }
1.353 albertel 591:
1.159 albertel 592: #ignore error conditions
1.67 albertel 593: my ($temp)=keys %Apache::lonhomework::history ;
1.159 albertel 594: if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); }
1.65 albertel 595: }
596:
1.435 jms 597: =pod
598:
599: =item finalize_storage()
600:
601: Stores away the result has to a student's environment
602: checks form.grade_ for specific values, other wises stores
603: to the running users environment
604: Will increment totals for attempts, students, and corrects
605: if running user has student role.
606:
607: =cut
608:
609:
1.65 albertel 610: sub finalize_storage {
1.357 albertel 611: my ($given_symb) = @_;
1.159 albertel 612: my $result;
1.289 albertel 613: if (%Apache::lonhomework::results) {
1.323 albertel 614: my @remove = grep(/^INTERNAL_/,keys(%Apache::lonhomework::results));
615: delete(@Apache::lonhomework::results{@remove});
1.357 albertel 616: my ($symb,$courseid,$domain,$name) =
1.367 albertel 617: &Apache::lonnet::whichuser($given_symb);
1.333 albertel 618: if ($env{'request.state'} eq 'construct'
619: || $symb eq ''
620: || $Apache::lonhomework::type eq 'practice') {
621: my $namespace = $symb || $env{'request.uri'};
1.284 albertel 622: $Apache::lonhomework::results{'rndseed'}=$env{'form.rndseed'};
1.159 albertel 623: $result=&Apache::lonnet::tmpstore(\%Apache::lonhomework::results,
1.333 albertel 624: $namespace,'',$domain,$name);
1.159 albertel 625: &Apache::lonxml::debug('Construct Store return message:'.$result);
626: } else {
627: $result=&Apache::lonnet::cstore(\%Apache::lonhomework::results,
628: $symb,$courseid,$domain,$name);
629: &Apache::lonxml::debug('Store return message:'.$result);
1.285 raeburn 630: if ($env{'request.role'} =~/^st/) {
631: &store_aggregates($symb,$courseid);
632: }
1.159 albertel 633: }
1.323 albertel 634: } else {
635: &Apache::lonxml::debug('Nothing to store');
1.67 albertel 636: }
1.159 albertel 637: return $result;
1.65 albertel 638: }
639:
1.435 jms 640: =pod
641:
642: item store_aggregates()
643:
644: Sends hash of values to be incremented in nohist_resourcetracker.db
645: for the course. Increments total number of attempts, unique students
646: and corrects for each part for an instance of a problem, as appropriate.
647:
648: =cut
649:
1.285 raeburn 650: sub store_aggregates {
651: my ($symb,$courseid) = @_;
1.286 albertel 652: my %aggregate;
653: my @parts;
1.288 albertel 654: my $cdomain = $env{'course.'.$env{'request.course.id'}.'.domain'};
655: my $cname = $env{'course.'.$env{'request.course.id'}.'.num'};
1.286 albertel 656: foreach my $key (keys(%Apache::lonhomework::results)) {
1.287 albertel 657: if ($key =~ /resource\.([^\.]+)\.tries/) {
1.286 albertel 658: push(@parts, $1);
1.285 raeburn 659: }
660: }
1.286 albertel 661: foreach my $part (@parts) {
662: if ($Apache::lonhomework::results{'resource.'.$part.'.award'}
663: eq 'APPROX_ANS' ||
664: $Apache::lonhomework::results{'resource.'.$part.'.award'}
665: eq 'EXACT_ANS') {
1.287 albertel 666: $aggregate{$symb."\0".$part."\0correct"} = 1;
1.285 raeburn 667: }
1.286 albertel 668: if ($Apache::lonhomework::results{'resource.'.$part.'.tries'} == 1) {
1.287 albertel 669: $aggregate{$symb."\0".$part."\0users"} = 1;
1.292 raeburn 670: } else {
1.293 albertel 671: my (undef,$last_reset) = &Apache::grades::get_last_resets($symb,$env{'request.course.id'},[$part]);
1.292 raeburn 672: if ($last_reset) {
1.293 albertel 673: if (&Apache::grades::get_num_tries(\%Apache::lonhomework::history,$last_reset,$part) == 0) {
1.292 raeburn 674: $aggregate{$symb."\0".$part."\0users"} = 1;
675: }
676: }
1.285 raeburn 677: }
1.287 albertel 678: $aggregate{$symb."\0".$part."\0attempts"} = 1;
1.285 raeburn 679: }
1.292 raeburn 680: if (keys (%aggregate) > 0) {
1.289 albertel 681: &Apache::lonnet::cinc('nohist_resourcetracker',\%aggregate,
1.292 raeburn 682: $cdomain,$cname);
683: }
684: }
1.289 albertel 685:
1.65 albertel 686: sub checkout_msg {
1.211 albertel 687: my %lt=&Apache::lonlocal::texthash(
688: 'resource'=>'The resource needs to be checked out',
689: 'id_expln'=>'As a resource gets checked out, a unique timestamped ID is given to it, and a permanent record is left in the system.',
690: 'warning'=>'Checking out resources is subject to course policies, and may exclude future credit even if done erroneously.',
691: 'checkout'=>'Check out Exam for Viewing',
692: 'checkout?'=>'Check out Exam?');
1.352 albertel 693: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.159 albertel 694: return (<<ENDCHECKOUT);
1.211 albertel 695: <h2>$lt{'resource'}</h2>
696: <p>$lt{'id_expln'}</p>
1.449 bisitz 697: <p class="LC_warning">$lt{'warning'}</p>
1.444 bisitz 698: <form name="checkout" method="post" action="$uri">
1.91 albertel 699: <input type="hidden" name="doescheckout" value="yes" />
1.211 albertel 700: <input type="button" name="checkoutbutton" value="$lt{'checkout'}" onClick="javascript:if (confirm('$lt{'checkout?'}')) { document.checkout.submit(); }" />
1.65 albertel 701: </form>
702: ENDCHECKOUT
703: }
704:
1.252 albertel 705: sub firstaccess_msg {
1.253 albertel 706: my ($time,$symb)=@_;
1.414 albertel 707: my $result;
708: my @interval=&Apache::lonnet::EXT("resource.0.interval");
709: if ($interval[1] eq 'map') {
710: my ($map)=&Apache::lonnet::decode_symb($symb);
711: my $foldertitle=&Apache::lonnet::gettitle($map);
712:
713: &Apache::lonxml::debug("map is $map title is $foldertitle");
1.418 bisitz 714: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
715: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
716: ,$foldertitle,$time)."</h2>";
1.414 albertel 717: } elsif ($interval[1] eq 'course') {
718: my $course = $env{'course.'.$env{'request.course.id'}.'.description'};
1.418 bisitz 719: $result .= "<h2>".&mt('The resources in "[_1]" are open for a limited time.'
720: .' Once you click the "Show Resource" button below you have [_2] to complete all resources "[_1]".'
721: ,$course,$time)."</h2>";
1.414 albertel 722: } else {
723: my $title=&Apache::lonnet::gettitle($symb);
1.418 bisitz 724: $result .= "<h2>".&mt('This resource "[_1]" is open for a limited time.'
725: .' Once you click the "Show Resource" button below you have [_2] to complete this resource "[_1]".'
726: ,$title,$time)."</h2>";
1.414 albertel 727: }
1.352 albertel 728: my $uri = &Apache::lonenc::check_encrypt($env{'request.uri'});
1.418 bisitz 729: my $buttontext = &mt('Show Resource');
730: my $timertext = &mt('Start Timer?');
1.414 albertel 731: $result .= (<<ENDCHECKOUT);
1.444 bisitz 732: <form name="markaccess" method="post" action="$uri">
1.252 albertel 733: <input type="hidden" name="markaccess" value="yes" />
1.418 bisitz 734: <input type="button" name="accessbutton" value="$buttontext" onClick="javascript:if (confirm('$timertext')) { document.markaccess.submit(); }" />
1.252 albertel 735: </form>
736: ENDCHECKOUT
1.414 albertel 737: return $result;
1.252 albertel 738: }
739:
1.204 albertel 740: sub init_problem_globals {
741: my ($type)=@_;
742: #initialize globals
1.308 foxr 743: # For problems, we start out in part 0 (outside a <part> tag).
744: # and part 0 is used to describe the main body of the <problem>
745: #
1.204 albertel 746: if ($type eq 'problem') {
747: $Apache::inputtags::part='0';
748: @Apache::inputtags::partlist=('0');
1.405 albertel 749: &Apache::lonhomework::set_show_problem_status(&get_problem_status('0'));
1.266 albertel 750: $Apache::lonhomework::ignore_response_errors=0;
1.308 foxr 751:
1.266 albertel 752: } elsif ($type eq 'library') {
1.204 albertel 753: $Apache::inputtags::part='';
754: @Apache::inputtags::partlist=();
1.405 albertel 755: &Apache::lonhomework::reset_show_problem_status();
1.266 albertel 756: $Apache::lonhomework::ignore_response_errors=1;
1.308 foxr 757:
1.304 albertel 758: } elsif ($type eq 'Task') {
759: $Apache::inputtags::part='0';
760: @Apache::inputtags::partlist=('0');
1.405 albertel 761: &Apache::lonhomework::reset_show_problem_status();
1.304 albertel 762: $Apache::lonhomework::ignore_response_errors=1;
1.204 albertel 763: }
764: @Apache::inputtags::responselist = ();
765: @Apache::inputtags::importlist = ();
766: @Apache::inputtags::previous=();
767: @Apache::inputtags::previous_version=();
768: $Apache::structuretags::printanswer='No';
769: @Apache::structuretags::whileconds=();
770: @Apache::structuretags::whilebody=();
771: @Apache::structuretags::whileline=();
772: $Apache::lonhomework::scantronmode=0;
773: undef($Apache::lonhomework::name);
1.358 albertel 774: undef($Apache::lonhomework::default_type);
775: undef($Apache::lonhomework::type);
1.204 albertel 776: }
777:
778: sub reset_problem_globals {
779: my ($type)=@_;
780: undef(%Apache::lonhomework::history);
781: undef(%Apache::lonhomework::results);
782: undef($Apache::inputtags::part);
1.208 albertel 783: #don't undef this, lonhomework.pm takes care of this, we use this to
784: #detect if we try to do 2 problems in one file
785: # undef($Apache::lonhomework::parsing_a_problem);
1.204 albertel 786: undef($Apache::lonhomework::name);
1.358 albertel 787: undef($Apache::lonhomework::default_type);
788: undef($Apache::lonhomework::type);
789: undef($Apache::lonhomework::scantronmode);
790: undef($Apache::lonhomework::ignore_response_errors);
1.405 albertel 791: &Apache::lonhomework::reset_show_problem_status();
1.204 albertel 792: }
793:
1.241 albertel 794: sub set_problem_state {
1.240 albertel 795: my ($part)=@_;
1.284 albertel 796: if ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct') {
1.240 albertel 797: $Apache::lonhomework::history{"resource.$part.solved"}=
798: 'correct_by_student';
799: }
800: }
801:
1.241 albertel 802: sub get_problem_status {
803: my ($part)=@_;
1.267 albertel 804: my $problem_status;
1.284 albertel 805: if ($env{'request.state'} eq 'construct' &&
806: defined($env{'form.problemstatus'})) {
807: $problem_status=$env{'form.problemstatus'};
1.267 albertel 808: } else {
809: $problem_status=&Apache::lonnet::EXT("resource.$part.problemstatus");
810: &Apache::lonxml::debug("problem status for $part is $problem_status");
1.284 albertel 811: &Apache::lonxml::debug("env probstat is ".$env{'form.problemstatus'});
1.241 albertel 812: }
813: return $problem_status;
814: }
815:
1.9 albertel 816: sub start_problem {
1.326 albertel 817: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.19 albertel 818:
1.311 foxr 819: # We'll use the redirection to fix up printing of duedates.
1.321 albertel 820: if (!$Apache::lonxml::metamode) {
821: &Apache::lonxml::startredirection();
822: }
1.311 foxr 823:
1.308 foxr 824: # Problems don't nest and we don't allow more than one <problem> in
825: # a .problem file.
826: #
1.184 albertel 827: if ( $Apache::inputtags::part ne '' ||
828: $Apache::lonhomework::parsing_a_problem) {
829: &Apache::lonxml::error('Only one <problem> allowed in a .problem file');
1.326 albertel 830: #my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,$style);
1.159 albertel 831: return '';
832: }
1.184 albertel 833:
834: $Apache::lonhomework::parsing_a_problem=1;
1.204 albertel 835: &init_problem_globals('problem');
1.166 albertel 836:
1.284 albertel 837: if (defined($env{'scantron.maxquest'})) {
1.166 albertel 838: $Apache::lonhomework::scantronmode=1;
839: }
1.161 albertel 840:
1.159 albertel 841: if ($target ne 'analyze') {
1.415 raeburn 842: my $type = &Apache::lonnet::EXT('resource.0.type');
843: $Apache::lonhomework::type=$type;
1.284 albertel 844: if (($env{'request.state'} eq 'construct') &&
1.410 albertel 845: $env{'form.problemtype'} =~ /\S/) {
1.284 albertel 846: $Apache::lonhomework::type=$env{'form.problemtype'};
1.237 albertel 847: }
1.332 albertel 848: &Apache::lonxml::debug("Found this to be of type :$Apache::lonhomework::type:");
1.159 albertel 849: }
1.164 albertel 850: if ($Apache::lonhomework::type eq '' ) {
1.284 albertel 851: my $uri=$env{'request.uri'};
1.159 albertel 852: if ($uri=~/\.(\w+)$/) {
853: $Apache::lonhomework::type=$1;
854: &Apache::lonxml::debug("Using type of $1");
855: } else {
856: $Apache::lonhomework::type='problem';
857: &Apache::lonxml::debug("Using default type, problem, :$uri:");
858: }
1.87 albertel 859: }
1.301 albertel 860: $Apache::lonhomework::default_type = $Apache::lonhomework::type;
1.58 www 861:
1.363 albertel 862: &initialize_storage();
1.389 albertel 863: if ($target ne 'analyze'
864: && $env{'request.state'} eq 'construct') {
865: &set_problem_state('0');
866: }
867:
1.366 albertel 868: if ($target eq 'web') {
869: &Apache::lonxml::debug(" grading history ");
870: &Apache::lonhomework::showhash(%Apache::lonhomework::history);
871: }
1.363 albertel 872:
1.159 albertel 873: #added vars to the scripting enviroment
1.213 albertel 874: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.248 albertel 875: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.24 albertel 876: &Apache::run::run($expression,$safeeval);
1.159 albertel 877: my $status;
878: my $accessmsg;
879:
1.343 albertel 880: my $name= &get_resource_name($parstack,$safeeval);
1.350 albertel 881: my ($result,$form_tag_start);
1.354 albertel 882: if ($target eq 'web' || $target eq 'webgrade' || $target eq 'tex'
883: || $target eq 'edit') {
1.350 albertel 884: ($result,$form_tag_start) =
885: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
886: $name);
887: }
888:
1.284 albertel 889: if ($target eq 'tex' and $env{'request.symb'} =~ m/\.page_/) {$result='';}
1.159 albertel 890:
891: if ($target eq 'analyze') { my $rndseed=&setup_rndseed($safeeval); }
892: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
893: $target eq 'tex') {
894: #handle exam checkout
895: if ($Apache::lonhomework::type eq 'exam') {
896: my $token=
897: $Apache::lonhomework::history{"resource.0.outtoken"};
1.284 albertel 898: if (($env{'form.doescheckout'}) && (!$token)) {
1.159 albertel 899: $token=&Apache::lonxml::maketoken();
900: $Apache::lonhomework::history{"resource.0.outtoken"}=
901: $token;
902: }
1.343 albertel 903: $result.=&Apache::lonxml::printtokenheader($target,$token);
1.142 albertel 904: }
1.284 albertel 905: if ($env{'form.markaccess'}) {
1.414 albertel 906: my @interval=&Apache::lonnet::EXT("resource.0.interval");
907: &Apache::lonnet::set_first_access($interval[1]);
1.252 albertel 908: }
1.159 albertel 909: #handle rand seed in construction space
910: my $rndseed=&setup_rndseed($safeeval);
1.367 albertel 911: my ($symb)=&Apache::lonnet::whichuser();
1.333 albertel 912: if ($env{'request.state'} ne "construct" &&
913: ($symb eq '' || $Apache::lonhomework::type eq 'practice')) {
1.162 albertel 914: $form_tag_start.='<input type="hidden" name="rndseed" value="'.
915: $rndseed.'" />'.
916: '<input type="submit" name="resetdata"
1.334 albertel 917: value="'.&mt('New Problem Variation').'" />';
918: if (exists($env{'form.username'})) {
919: $form_tag_start.=
1.164 albertel 920: '<input type="hidden" name="username"
1.284 albertel 921: value="'.$env{'form.username'}.'" />';
1.334 albertel 922: }
1.333 albertel 923: if ($env{'request.role.adv'}) {
1.457 bisitz 924: $form_tag_start.= ' <label class="LC_nobreak">'
925: .'<input type="checkbox" name="showallfoils"';
1.284 albertel 926: if (defined($env{'form.showallfoils'})) {
1.440 bisitz 927: $form_tag_start.=' checked="checked"';
1.267 albertel 928: }
1.457 bisitz 929: $form_tag_start.= ' /> '
930: .&mt('Show All Foils')
931: .'</label>';
1.267 albertel 932: }
1.417 www 933: if ($Apache::lonhomework::type eq 'practice') {
1.428 raeburn 934: $form_tag_start.=&practice_problem_header();
1.417 www 935: }
1.267 albertel 936: $form_tag_start.='<hr />';
1.162 albertel 937: }
1.324 albertel 938:
939: ($status,$accessmsg,my $slot_name,my $slot) =
940: &Apache::lonhomework::check_slot_access('0','problem');
1.159 albertel 941: push (@Apache::inputtags::status,$status);
1.324 albertel 942:
1.159 albertel 943: my $expression='$external::datestatus="'.$status.'";';
944: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
945: &Apache::run::run($expression,$safeeval);
946: &Apache::lonxml::debug("Got $status");
1.324 albertel 947:
1.159 albertel 948: if (( $status eq 'CLOSED' ) ||
949: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 950: ( $status eq 'NOT_YET_VIEWED') ||
1.159 albertel 951: ( $status eq 'BANNED') ||
1.216 albertel 952: ( $status eq 'UNAVAILABLE') ||
1.324 albertel 953: ( $status eq 'NOT_IN_A_SLOT') ||
1.216 albertel 954: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 955: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
956: $style);
1.159 albertel 957: if ( $target eq "web" ) {
1.343 albertel 958: my $msg;
1.159 albertel 959: if ($status eq 'UNAVAILABLE') {
1.245 albertel 960: $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.441 raeburn 961: } elsif ($status eq 'NOT_IN_A_SLOT') {
962: $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.253 albertel 963: } elsif ($status ne 'NOT_YET_VIEWED') {
1.245 albertel 964: $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
1.159 albertel 965: }
1.216 albertel 966: if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
1.393 www 967: $msg.=&mt('The problem ').$accessmsg;
1.159 albertel 968: } elsif ($status eq 'UNCHECKEDOUT') {
1.343 albertel 969: $msg.=&checkout_msg();
1.252 albertel 970: } elsif ($status eq 'NOT_YET_VIEWED') {
1.253 albertel 971: $msg.=&firstaccess_msg($accessmsg,$symb);
1.325 albertel 972: } elsif ($status eq 'NOT_IN_A_SLOT') {
1.441 raeburn 973: $msg.=&Apache::bridgetask::add_request_another_attempt_button("Sign up for time to work");
1.159 albertel 974: }
975: $result.=$msg.'<br />';
976: } elsif ($target eq 'tex') {
1.332 albertel 977: my $startminipage = ($env{'form.problem_split'}=~/yes/i)? ''
978: : '\begin{minipage}{\textwidth}';
1.443 foxr 979: $result.='\noindent \vskip 1 mm '.
1.332 albertel 980: $startminipage.'\vskip 0 mm';
1.159 albertel 981: if ($status eq 'UNAVAILABLE') {
1.211 albertel 982: $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
1.159 albertel 983: } else {
1.211 albertel 984: $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
1.159 albertel 985: }
986: }
1.324 albertel 987: } elsif ($status eq 'NEEDS_CHECKIN') {
1.326 albertel 988: my $bodytext=&Apache::lonxml::get_all_text("/problem",$parser,
989: $style);
1.324 albertel 990: if ($target eq 'web') {
1.375 albertel 991: $result .=
992: &Apache::bridgetask::proctor_validation_screen($slot);
1.324 albertel 993: } elsif ($target eq 'grade') {
994: &Apache::bridgetask::proctor_check_auth($slot_name,$slot,
995: 'problem');
996: }
1.159 albertel 997: } elsif ($target eq 'web') {
1.360 albertel 998: if ($status eq 'CAN_ANSWER'
999: && $slot_name ne ''
1000: && $Apache::lonhomework::history{'resource.0.checkedin'} eq '') {
1001: # unproctored slot access, self checkin
1002: &Apache::bridgetask::check_in('problem',undef,undef,
1003: $slot_name);
1004: }
1.368 albertel 1005: $result.="\n $form_tag_start \t".
1.227 albertel 1006: '<input type="hidden" name="submitted" value="yes" />';
1007: # create a page header and exit
1.284 albertel 1008: if ($env{'request.state'} eq "construct") {
1009: $result.= &problem_web_to_edit_header($env{'form.rndseed'});
1.428 raeburn 1010: if ($Apache::lonhomework::type eq 'practice') {
1011: $result.= '<input type="submit" name="resetdata" '.
1012: 'value="'.&mt('New Problem Variation').'" />'.
1013: &practice_problem_header().'<hr />';
1014: }
1.227 albertel 1015: }
1016: # if we are viewing someone else preserve that info
1.284 albertel 1017: if (defined $env{'form.grade_symb'}) {
1.227 albertel 1018: foreach my $field ('symb','courseid','domain','username') {
1019: $result .= '<input type="hidden" name="grade_'.$field.
1.284 albertel 1020: '" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.159 albertel 1021: }
1022: }
1023: } elsif ($target eq 'tex') {
1.319 foxr 1024: $result .= 'INSERTTEXFRONTMATTERHERE';
1025:
1.99 sakharuk 1026: }
1.159 albertel 1027: } elsif ($target eq 'edit') {
1.343 albertel 1028: $result .= $form_tag_start.&problem_edit_header();
1.226 albertel 1029: $Apache::lonxml::warnings_error_header=
1030: &mt("Editor Errors - these errors might not effect the running of the problem, but they will likely cause problems with further use of the Edit mode. Please use the EditXML mode to fix these errors.")."<br />";
1.159 albertel 1031: my $temp=&Apache::edit::insertlist($target,$token);
1032: $result.=$temp;
1033: } elsif ($target eq 'modified') {
1034: $result=$token->[4];
1035: } else {
1036: # page_start returned a starting result, delete it if we don't need it
1037: $result = '';
1.99 sakharuk 1038: }
1.159 albertel 1039: return $result;
1.9 albertel 1040: }
1041:
1042: sub end_problem {
1.159 albertel 1043: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.321 albertel 1044: my $result;
1.310 foxr 1045:
1.321 albertel 1046: if (!$Apache::lonxml::metamode) {
1047: $result = &Apache::lonxml::endredirection(); #started in &start_problem
1.329 albertel 1048: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1049: }
1.319 foxr 1050:
1051: if ($target eq 'tex') {
1.321 albertel 1052: # Figure out the front matter and replace the
1053: # INSERTTEXFRONTMATTERHERE in result with it. note that we do
1054: # this in end_problem because whether or not we display due
1055: # dates depends on whether due dates have already been
1056: # displayed in the problem parts.
1057:
1.319 foxr 1058: my $frontmatter = '';
1059: my $startminipage = '';
1060: if (not $env{'form.problem_split'}=~/yes/) {
1061: $startminipage = '\begin{minipage}{\textwidth}';
1062: }
1063: my $id = $Apache::inputtags::part;
1064: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1065: my $packages=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1066: my @packages = split /,/,$packages;
1067: my $allow_print_points = 0;
1068: foreach my $partial_key (@packages) {
1069: if ($partial_key=~m/^part_0$/) {
1070: $allow_print_points=1;
1071: }
1072: }
1073: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1074: if (defined($maxtries) && $maxtries < 0) { $allow_print_points=0; }
1075: if (lc($env{'course.'.$env{'request.course.id'}.
1076: '.disableexampointprint'}) eq 'yes') {
1077: $allow_print_points=0;
1078: }
1079: my $name_of_resourse= &Apache::lonxml::latex_special_symbols(&get_resource_name($parstack,$safeeval),'header');
1.443 foxr 1080: my $begin_doc=' \typeout{STAMPOFPASSEDRESOURCESTART Resource <h2>"'.$name_of_resourse.'"</h2> located in <br /><small><b>'.$env{'request.uri'}.'</b></small><br /> STAMPOFPASSEDRESOURCEEND} \noindent ';
1.319 foxr 1081: my $toc_line='\vskip 1 mm\noindent '.$startminipage.
1082: '\addcontentsline{toc}{subsection}{'.$name_of_resourse.'}';
1083:
1084: # Figure out what the due date is and if we need to print
1085: # it in the problem header. We have been logging the
1086: # last due date written to file.
1087:
1088: my $duetime = &Apache::lonnet::EXT("resource.$id.duedate");
1089: my $duedate = POSIX::strftime("%c",localtime($duetime));
1.448 bisitz 1090: my $duedate_text = &mt('Due date: [_1]'
1091: ,&Apache::lonlocal::locallocaltime($duetime));
1.319 foxr 1092: my $temp_file;
1093: my $filename = "/home/httpd/prtspool/$env{'user.name'}_$env{'user.domain'}_printout.due";
1094:
1095: # Figure out what the last printed due date is or set it
1096: # to the epoch if no duedates have been printed.
1097:
1098: my $due_file_content = 0; # If the file does not yet exist, time is the epoch.
1099: if (-e $filename) {
1100: $temp_file = Apache::File->new($filename);
1101: my @due_file = <$temp_file>;
1102: $due_file_content = $due_file[$#due_file];
1103: chomp $due_file_content;
1104: }
1105:
1106: # We display the due date iff it is not the same as the last
1107: # duedate in problem header ($due_file_content), and
1108: # none of our parts displayed a duedate.
1109: #
1110: my $parts_with_displayduedate;
1111: if (defined $Apache::outputtags::showonce{'displayduedate'}) {
1112: $parts_with_displayduedate =
1113: scalar(@{$Apache::outputtags::showonce{'displayduedate'}});
1114: } else {
1115: $parts_with_displayduedate = 0;
1116: }
1117: if (($due_file_content != $duetime) && ($parts_with_displayduedate == 0) ) {
1118: $temp_file = Apache::File->new('>'.$filename);
1119: print $temp_file "$duetime\n";
1120: if (not $env{'request.symb'} =~ m/\.page_/) {
1121: if(not $duedate=~m/1969/ and $Apache::lonhomework::type ne 'exam') {
1122: $frontmatter .= $begin_doc.
1.448 bisitz 1123: '\textit{'.$duedate_text.'} '.$toc_line;
1.319 foxr 1124: } else {
1125: $frontmatter.= $begin_doc.$toc_line;
1126: if ($Apache::lonhomework::type eq 'exam' and $allow_print_points==1) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1127: }
1128: } else {
1.448 bisitz 1129: $frontmatter .= '\vskip 1mm\textit{'.$duedate_text.'} \\\\\\\\'.$startminipage;
1.319 foxr 1130: }
1131: } else {
1132: if (not $env{'request.symb'} =~ m/\.page_/) {
1133: $frontmatter .= $begin_doc.$toc_line;
1134: if (($Apache::lonhomework::type eq 'exam') and ($allow_print_points==1)) { $frontmatter .= '\fbox{\textit{'.$weight.' pt}}';}
1135: } else {
1.381 albertel 1136: $frontmatter .= '\vskip 1mm \\\\\\\\'.$startminipage;
1.319 foxr 1137: }
1138: }
1139: $result =~ s/INSERTTEXFRONTMATTERHERE/$frontmatter/;
1140: }
1141:
1.159 albertel 1142: my $status=$Apache::inputtags::status['-1'];
1143: if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1144: $target eq 'tex') {
1.249 albertel 1145: if ( $target eq 'grade' && $Apache::inputtags::part eq '0') {
1.159 albertel 1146: # if part is zero, no <part>s existed, so we need to the grading
1.249 albertel 1147: if ($status eq 'CAN_ANSWER' ||$Apache::lonhomework::scantronmode) {
1148: &Apache::inputtags::grade;
1.324 albertel 1149: } elsif ($status eq 'NEEDS_CHECKIN') {
1150: # no need to grade, and don't want to hide data
1.249 albertel 1151: } else {
1152: # move any submission data to .hidden
1153: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1154: }
1.159 albertel 1155: } elsif ( ($target eq 'web' || $target eq 'tex') &&
1156: $Apache::inputtags::part eq '0' &&
1.252 albertel 1157: $status ne 'UNCHECKEDOUT' && $status ne 'NOT_YET_VIEWED') {
1.159 albertel 1158: # if part is zero, no <part>s existed, so we need show the current
1159: # grading status
1160: my $gradestatus = &Apache::inputtags::gradestatus($Apache::inputtags::part,$target);
1161: $result.= $gradestatus;
1162: }
1163: if (
1.284 albertel 1164: (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.159 albertel 1165: ($target eq 'answer') || ($target eq 'tex')
1166: ) {
1.227 albertel 1167: if ($target ne 'tex' &&
1.284 albertel 1168: $env{'form.answer_output_mode'} ne 'tex') {
1.254 www 1169: $result.="</form>";
1.348 albertel 1170: $result.= &Apache::lonhtmlcommon::htmlareaselectactive(&Apache::lonhtmlcommon::get_htmlareafields());
1.159 albertel 1171: }
1172: if ($target eq 'web') {
1.346 albertel 1173: $result.= &Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1174: } elsif ($target eq 'tex') {
1.178 sakharuk 1175: my $endminipage = '';
1.284 albertel 1176: if (not $env{'form.problem_split'}=~/yes/) {
1.178 sakharuk 1177: $endminipage = '\end{minipage}';
1178: }
1.284 albertel 1179: if ($env{'form.print_discussions'} eq 'yes') {
1.263 sakharuk 1180: $result.=&Apache::lonxml::xmlend($target,$parser);
1.159 albertel 1181: } else {
1.262 sakharuk 1182: $result .= '\keephidden{ENDOFPROBLEM}\vskip 0.5mm\noindent\makebox[\textwidth/$number_of_columns][b]{\hrulefill}';
1.284 albertel 1183: if (not $env{'request.symb'} =~ m/\.page_/) {
1.262 sakharuk 1184: $result .= $endminipage.'\end{document} ';
1185: } else {
1.382 albertel 1186: $result .= $endminipage;
1.262 sakharuk 1187: }
1.159 albertel 1188: }
1189: }
1190: }
1191: if ($target eq 'grade') {
1192: &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1193: &finalize_storage();
1194: }
1.284 albertel 1195: if ($target eq 'answer' && ($env{'request.state'} eq 'construct')
1196: && $env{'form.answer_output_mode'} ne 'tex') {
1.346 albertel 1197: $result.=&Apache::loncommon::end_page({'discussion' => 1});
1.294 albertel 1198: # normally we get it from above, but in CSTR
1.172 albertel 1199: # we always show answer mode too.
1.159 albertel 1200: }
1201: } elsif ($target eq 'meta') {
1202: if ($Apache::inputtags::part eq '0') {
1.179 albertel 1203: @Apache::inputtags::response=();
1.159 albertel 1204: $result=&Apache::response::mandatory_part_meta;
1205: }
1.215 albertel 1206: $result.=&Apache::response::meta_part_order();
1.258 albertel 1207: $result.=&Apache::response::meta_response_order();
1.159 albertel 1208: } elsif ($target eq 'edit') {
1209: &Apache::lonxml::debug("in end_problem with $target, edit");
1.314 albertel 1210: $result .= &problem_edit_footer();
1.320 albertel 1211: } elsif ($target eq 'modified') {
1212: $result .= $token->[2];
1.159 albertel 1213: }
1.155 albertel 1214:
1.284 albertel 1215: if ($env{'request.state'} eq 'construct' && $target eq 'web') {
1.177 albertel 1216: &Apache::inputtags::check_for_duplicate_ids();
1217: }
1.204 albertel 1218:
1219: &reset_problem_globals('problem');
1.159 albertel 1220:
1221: return $result;
1.48 albertel 1222: }
1223:
1.108 albertel 1224:
1.48 albertel 1225: sub start_library {
1.159 albertel 1226: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.343 albertel 1227: my ($result,$form_tag_start);
1.371 albertel 1228: if ($#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1.244 albertel 1229: &init_problem_globals('library');
1230: $Apache::lonhomework::type='problem';
1231: }
1.159 albertel 1232: if ($target eq 'edit') {
1.343 albertel 1233: ($result,$form_tag_start)=
1234: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1235: 'Edit');
1236: $result.=$form_tag_start.&problem_edit_header();
1.159 albertel 1237: my $temp=&Apache::edit::insertlist($target,$token);
1238: $result.=$temp;
1239: } elsif ($target eq 'modified') {
1240: $result=$token->[4];
1.340 albertel 1241: } elsif (($target eq 'web' || $target eq 'webgrade')
1.371 albertel 1242: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1.340 albertel 1243: && $env{'request.state'} eq "construct" ) {
1.159 albertel 1244: my $name=&get_resource_name($parstack,$safeeval);
1.343 albertel 1245: ($result,$form_tag_start)=
1246: &page_start($target,$token,$tagstack,$parstack,$parser,$safeeval,
1247: $name);
1.159 albertel 1248: my $rndseed=&setup_rndseed($safeeval);
1.343 albertel 1249: $result.=" \n $form_tag_start".
1.159 albertel 1250: '<input type="hidden" name="submitted" value="yes" />';
1251: $result.=&problem_web_to_edit_header($rndseed);
1.428 raeburn 1252: if ($Apache::lonhomework::type eq 'practice') {
1253: $result.= '<input type="submit" name="resetdata" '.
1254: 'value="'.&mt('New Problem Variation').'" />'.
1255: &practice_problem_header().'<hr />';
1256: }
1.159 albertel 1257: }
1258: return $result;
1.48 albertel 1259: }
1260:
1261: sub end_library {
1.159 albertel 1262: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1263: my $result='';
1264: if ($target eq 'edit') {
1265: $result=&problem_edit_footer();
1.371 albertel 1266: } elsif ($target eq 'web'
1267: && ($#$tagstack eq 0 && $$tagstack[0] eq 'library')
1268: && $env{'request.state'} eq "construct") {
1.349 albertel 1269: $result.='</form>'.&Apache::loncommon::end_page({'discussion' => 1});
1.159 albertel 1270: }
1.371 albertel 1271: if ( $#$tagstack eq 0 && $$tagstack[0] eq 'library') {
1272: &reset_problem_globals('library');
1273: }
1.159 albertel 1274: return $result;
1.197 www 1275: }
1276:
1277: sub start_definetag {
1.326 albertel 1278: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.197 www 1279:
1280: my $result;
1281:
1282: my $name = $token->[2]->{'name'};
1.326 albertel 1283: my $skip=&Apache::lonxml::get_all_text("/definetag",$parser,$style);
1.396 albertel 1284: if ($target eq 'web') {
1285: if ($name=~/^\//) {
1286: $result=
1287: '<br /><table class="LC_sty_end"><tr><th>'.
1288: &mt('END [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1289: } else {
1290: $result=
1291: '<br /><table class="LC_sty_begin"><tr><th>'.
1292: &mt('BEGIN [_1]'.'<tt>'.$name.'</tt>').'</th></tr>';
1293: }
1294: $skip = &HTML::Entities::encode($skip, '<>&"');
1295: $result.='<tr><td><pre>'.$skip.'</pre></td></tr></table>';
1.197 www 1296: }
1297: return $result;
1298: }
1299:
1300: sub end_definetag {
1301: return '';
1.1 albertel 1302: }
1303:
1304: sub start_block {
1.201 albertel 1305: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.131 albertel 1306:
1307: my $result;
1.1 albertel 1308:
1.339 albertel 1309: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1310: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.159 albertel 1311: my $code = $token->[2]->{'condition'};
1.385 albertel 1312: if (defined($code) && $code ne '') {
1.137 albertel 1313: if (!$Apache::lonxml::default_homework_loaded) {
1314: &Apache::lonxml::default_homework_load($safeeval);
1315: }
1.131 albertel 1316: $result = &Apache::run::run($code,$safeeval);
1317: &Apache::lonxml::debug("block :$code: returned :$result:");
1318: } else {
1319: $result='1';
1320: }
1321: if ( ! $result ) {
1.201 albertel 1322: my $skip=&Apache::lonxml::get_all_text("/block",$parser,$style);
1.131 albertel 1323: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1324: }
1325: $result='';
1326: } elsif ($target eq 'edit') {
1327: $result .=&Apache::edit::tag_start($target,$token);
1328: $result .=&Apache::edit::text_arg('Test Condition:','condition',
1329: $token,40);
1330: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1331: } elsif ($target eq 'modified') {
1332: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1333: $safeeval,'condition');
1334: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.38 albertel 1335: }
1.131 albertel 1336: return $result;
1.1 albertel 1337: }
1338:
1339: sub end_block {
1.167 www 1340: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1341: my $result;
1342: if ($target eq "edit") {
1343: $result.= &Apache::edit::tag_end($target,$token,'');
1344: }
1345: return $result;
1346: }
1347:
1348: sub start_languageblock {
1.201 albertel 1349: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.167 www 1350:
1351: my $result;
1352:
1.339 albertel 1353: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1354: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.201 albertel 1355: my $include = $token->[2]->{'include'};
1356: my $exclude = $token->[2]->{'exclude'};
1.436 raeburn 1357: my @preferred_languages=&Apache::lonlocal::preferred_languages();
1.394 www 1358: # This should not even happen, since we should at least have the server language
1.398 www 1359: if (!$preferred_languages[0]) { $preferred_languages[0]='en'; }
1360: # Now loop over all languages in order of preference
1361: foreach my $preferred_language (@preferred_languages) {
1.394 www 1362: # If the languageblock has no arguments, show the contents
1.399 www 1363: $result=1;
1364: my $found=0;
1.394 www 1365: # Do we have an include argument?
1.398 www 1366: if ($include) {
1.394 www 1367: # If include is specified, by default, don't render the block
1.399 www 1368: $result=0;
1.398 www 1369: foreach my $included_language (split(/\,/,$include)) {
1.394 www 1370: # ... but if my preferred language is included, render it
1.398 www 1371: if ($included_language eq $preferred_language) {
1.399 www 1372: $result=1;
1373: $found=1;
1.398 www 1374: }
1375: }
1376: }
1.394 www 1377: # Do we have an exclude argument?
1.398 www 1378: if ($exclude) {
1.399 www 1379: $result=1;
1.398 www 1380: foreach my $excluded_language (split(/\,/,$exclude)) {
1381: if ($excluded_language eq $preferred_language) {
1.399 www 1382: $result=0;
1383: $found=1;
1.398 www 1384: }
1385: }
1386: }
1.399 www 1387: if ($found) { last; }
1.398 www 1388: }
1.201 albertel 1389: if ( ! $result ) {
1390: my $skip=&Apache::lonxml::get_all_text("/languageblock",$parser,
1391: $style);
1392: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1393: }
1394: $result='';
1.167 www 1395: } elsif ($target eq 'edit') {
1396: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1397: $result .=&Apache::edit::text_arg(&mt('Include Language:'),'include',
1.167 www 1398: $token,40);
1.211 albertel 1399: $result .=&Apache::edit::text_arg(&mt('Exclude Language:'),'exclude',
1.167 www 1400: $token,40);
1401: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1402: } elsif ($target eq 'modified') {
1403: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.168 albertel 1404: $safeeval,'include',
1405: 'exclude');
1.167 www 1406: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1407: }
1408: return $result;
1409: }
1410:
1411: sub end_languageblock {
1.170 www 1412: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1413: my $result;
1.201 albertel 1414: if ($target eq "edit") {
1.170 www 1415: $result.= &Apache::edit::tag_end($target,$token,'');
1416: }
1417: return $result;
1418: }
1419:
1.397 albertel 1420: {
1421: my %available_texts;
1422: sub start_translated {
1423: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1424: &Apache::lonxml::register('Apache::structuretags',('lang'));
1425: undef(%available_texts);
1426: }
1427:
1428: sub end_translated {
1429: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1430: my $result;
1431: #show the translation on viewable targets
1432: if ($target eq 'web' || $target eq 'tex' || $target eq 'webgrade'||
1433: # or non-viewable targets, if it's embedded in something that
1434: # wants the output
1435: (($target eq 'answer' || $target eq 'analyze'|| $target eq 'grade')
1436: && &Apache::lonxml::in_redirection() ) ) {
1437: my @possibilities = keys(%available_texts);
1438: my $which =
1439: &Apache::loncommon::languages(\@possibilities) || 'default';
1440: $result = $available_texts{$which};
1441: }
1442: undef(%available_texts);
1443: &Apache::lonxml::deregister('Apache::structuretags',('lang'));
1444: return $result;
1445: }
1446:
1447:
1448: sub start_lang {
1449: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1450: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1451: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1452: &Apache::lonxml::startredirection();
1453: }
1454: return '';
1455: }
1456:
1457: sub end_lang {
1458: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1459: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1460: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1461: my $result = &Apache::lonxml::endredirection();
1462: my $which = &Apache::lonxml::get_param('which',$parstack,
1463: $safeeval);
1.431 raeburn 1464: if ($which=~/\w/) {
1465: $available_texts{$which} = $result;
1466: }
1467: my $otherlangs = &Apache::lonxml::get_param('other',$parstack,
1468: $safeeval);
1469: foreach my $language (split(/\s*\,\s*/,$otherlangs)) {
1470: if ($language=~/\w/) {
1471: $available_texts{$language} = $result;
1472: }
1.427 bisitz 1473: }
1474:
1.397 albertel 1475: }
1476: return '';
1477: }
1478: }
1479:
1.170 www 1480: sub start_instructorcomment {
1.201 albertel 1481: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.170 www 1482:
1483: my $result;
1484:
1.339 albertel 1485: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1486: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.284 albertel 1487: $result=($env{'request.role'}=~/^(in|cc|au|ca|li)/);
1488: if ( (! $result) or ($env{'form.instructor_comments'} eq 'hide')) {
1.201 albertel 1489: my $skip=&Apache::lonxml::get_all_text("/instructorcomment",
1490: $parser,$style);
1.170 www 1491: &Apache::lonxml::debug("skipping ahead :$skip: $$parser[-1]");
1492: }
1493: $result='';
1494: } elsif ($target eq 'edit') {
1495: $result .=&Apache::edit::tag_start($target,$token);
1496: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1497: }
1498: return $result;
1499: }
1500:
1501: sub end_instructorcomment {
1.159 albertel 1502: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1503: my $result;
1504: if ($target eq "edit") {
1505: $result.= &Apache::edit::tag_end($target,$token,'');
1506: }
1507: return $result;
1.4 tsai 1508: }
1509:
1510: sub start_while {
1.326 albertel 1511: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1512:
1.160 albertel 1513: my $result;
1.339 albertel 1514: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1515: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1516: my $code = $token->[2]->{'condition'};
1.4 tsai 1517:
1.160 albertel 1518: push( @Apache::structuretags::whileconds, $code);
1519: if (!$Apache::lonxml::default_homework_loaded) {
1520: &Apache::lonxml::default_homework_load($safeeval);
1521: }
1522: my $result = &Apache::run::run($code,$safeeval);
1.326 albertel 1523: my $bodytext=&Apache::lonxml::get_all_text("/while",$parser,$style);
1.160 albertel 1524: push( @Apache::structuretags::whilebody, $bodytext);
1.161 albertel 1525: push( @Apache::structuretags::whileline, $token->[5]);
1526: &Apache::lonxml::debug("s code $code got -$result-");
1.160 albertel 1527: if ( $result ) {
1528: &Apache::lonxml::newparser($parser,\$bodytext);
1529: }
1530: } elsif ($target eq 'edit') {
1531: $result .=&Apache::edit::tag_start($target,$token);
1.211 albertel 1532: $result .=&Apache::edit::text_arg(&mt('Test Condition:'),'condition',
1.160 albertel 1533: $token,40);
1534: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1535: } elsif ($target eq 'modified') {
1536: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1537: $safeeval,'condition');
1538: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1.159 albertel 1539: }
1.160 albertel 1540: return $result;
1.4 tsai 1541: }
1542:
1543: sub end_while {
1.159 albertel 1544: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.160 albertel 1545: my $result;
1546:
1.339 albertel 1547: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1548: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.160 albertel 1549: my $code = pop(@Apache::structuretags::whileconds);
1550: my $bodytext = pop(@Apache::structuretags::whilebody);
1.161 albertel 1551: my $line = pop(@Apache::structuretags::whileline);
1552: my $return = &Apache::run::run($code,$safeeval);
1553: my $starttime=time;
1554: my $error=0;
1555: while ($return) {
1556: if (time-$starttime >
1557: $Apache::lonnet::perlvar{'lonScriptTimeout'}) {
1.378 albertel 1558: $return = 0; $error=1; next;
1.161 albertel 1559: }
1560: $result.=&Apache::scripttag::xmlparse($bodytext);
1.380 albertel 1561: if ($target eq 'grade' || $target eq 'answer' ||
1562: $target eq 'analyze') {
1563: # grade/answer/analyze should produce no output but if we
1564: # are redirecting, the redirecter should know what to do
1565: # with the output
1566: if (!$Apache::lonxml::redirection) { undef($result); }
1567: }
1.161 albertel 1568: $return = &Apache::run::run($code,$safeeval);
1569: }
1570: if ($error) {
1.430 bisitz 1571: &Apache::lonxml::error('<pre>'.&mt('Code ran too long. It ran for more than').' '.$Apache::lonnet::perlvar{'lonScriptTimeout'}.' '.&mt('seconds occurred while running <while> on line').' '.$line.'</pre>');
1.160 albertel 1572: }
1573: } elsif ($target eq "edit") {
1574: $result.= &Apache::edit::tag_end($target,$token,'');
1.159 albertel 1575: }
1.160 albertel 1576: return $result;
1.1 albertel 1577: }
1.6 tsai 1578:
1.160 albertel 1579: # <randomlist show="1">
1.6 tsai 1580: # <tag1>..</tag1>
1581: # <tag2>..</tag2>
1582: # <tag3>..</tag3>
1.160 albertel 1583: # ...
1.6 tsai 1584: # </randomlist>
1585: sub start_randomlist {
1.326 albertel 1586: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1587: my $result;
1.339 albertel 1588: if ($target eq 'answer' || $target eq 'grade' || $target eq 'web' ||
1589: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.331 albertel 1590: my $body= &Apache::lonxml::get_all_text("/randomlist",$parser);
1.305 albertel 1591: my $b_parser= HTML::LCParser->new(\$body);
1592: $b_parser->xml_mode(1);
1593: $b_parser->marked_sections(1);
1.159 albertel 1594: my $b_tok;
1595: my @randomlist;
1596: my $list_item;
1597: while($b_tok = $b_parser->get_token() ) {
1598: if($b_tok->[0] eq 'S') { # start tag
1599: # get content of the tag until matching end tag
1600: # get all text upto the matching tag
1601: # and push the content into @randomlist
1602: $list_item = &Apache::lonxml::get_all_text('/'.$b_tok->[1],
1603: $b_parser);
1604: $list_item = "$b_tok->[4]"."$list_item"."</$b_tok->[1]>";
1605: push(@randomlist,$list_item);
1606: # print "<br /><b>START-TAG $b_tok->[1], $b_tok->[4],
1607: # $list_item</b>";
1608: }
1609: if($b_tok->[0] eq 'T') { # text
1610: # what to do with text in between tags?
1611: # print "<b>TEXT $b_tok->[1]</b><br />";
1612: }
1613: # if($b_tok->[0] eq 'E') { # end tag, should not happen
1614: # print "<b>END-TAG $b_tok->[1]</b><br />";
1615: # }
1616: }
1.303 albertel 1617: if (@randomlist) {
1618: my @idx_arr = (0 .. $#randomlist);
1619: &Apache::structuretags::shuffle(\@idx_arr);
1620: my $bodytext = '';
1621: my $show=$#randomlist;
1622: my $showarg=&Apache::lonxml::get_param('show',$parstack,$safeeval);
1623: $showarg--;
1624: if ( ($showarg >= 0) && ($showarg < $show) ) { $show = $showarg; }
1.439 raeburn 1625: if (($target eq 'analyze') && ($env{'form.check_parts_withrandomlist'})) {
1626: my @currlist;
1627: my $part = $Apache::inputtags::part;
1628: if ($part ne '') {
1629: if (ref($Apache::lonhomework::analyze{'parts_withrandomlist'}) eq 'ARRAY') {
1630: my @currlist = @{$Apache::lonhomework::analyze{'parts_withrandomlist'}};
1631: if (!(grep(/^\Q$part\E$/,@currlist))) {
1632: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1633: }
1634: } else {
1635: push(@{$Apache::lonhomework::analyze{'parts_withrandomlist'}},$part);
1636: }
1637: }
1638: }
1.303 albertel 1639: for(0 .. $show) {
1640: $bodytext .= "$randomlist[ $idx_arr[$_] ]";
1641: }
1642: &Apache::lonxml::newparser($parser,\$bodytext);
1.159 albertel 1643: }
1644: } elsif ($target eq 'edit' ) {
1645: $result .=&Apache::edit::tag_start($target,$token);
1646: $result .=&Apache::edit::text_arg('Maximum Tags to Show:','show',
1647: $token,5);
1648: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1649: } elsif ($target eq 'modified' ) {
1650: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1651: $safeeval,'show');
1652: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1653: }
1654: return $result;
1.7 tsai 1655: }
1656:
1657: sub shuffle {
1658: my $a=shift;
1659: my $i;
1.303 albertel 1660: if (ref($a) eq 'ARRAY' && @$a) {
1.251 albertel 1661: &Apache::response::pushrandomnumber();
1.159 albertel 1662: for($i=@$a;--$i;) {
1663: my $j=int(&Math::Random::random_uniform() * ($i+1));
1664: next if $i == $j;
1665: @$a[$i,$j] = @$a[$j,$i];
1666: }
1.251 albertel 1667: &Apache::response::poprandomnumber();
1.7 tsai 1668: }
1.6 tsai 1669: }
1670:
1671: sub end_randomlist {
1.159 albertel 1672: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1673: my $result;
1674: if ($target eq 'edit' ) {
1675: $result=&Apache::edit::tag_end($target,$token,
1676: 'End Randomly Parsed Block');
1677: }
1678: return $result;
1.6 tsai 1679: }
1680:
1.283 albertel 1681: sub ordered_show_check {
1682: my $last_part=$Apache::inputtags::partlist[-2];
1683: my $in_order=
1684: &Apache::lonnet::EXT('resource.'.$Apache::inputtags::part.'.ordered');
1685: my $in_order_show=1;
1686: if ($last_part ne '0' && lc($in_order) eq 'yes') {
1687: $in_order_show=&Apache::response::check_status($last_part);
1688: }
1689: return $in_order_show;
1690: }
1691:
1.11 albertel 1692: sub start_part {
1.326 albertel 1693: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.321 albertel 1694: if (!$Apache::lonxml::metamode) {
1695: &Apache::lonxml::startredirection(); # we'll use redirection to fix up
1696: # duedates.
1697: }
1.159 albertel 1698: my $result='';
1.386 albertel 1699: my $id= &Apache::lonxml::get_id($parstack,$safeeval);
1.159 albertel 1700: $Apache::inputtags::part=$id;
1.177 albertel 1701: push(@Apache::inputtags::partlist,$id);
1702: @Apache::inputtags::response=();
1.159 albertel 1703: @Apache::inputtags::previous=();
1704: @Apache::inputtags::previous_version=();
1.405 albertel 1705: &Apache::lonhomework::set_show_problem_status(&get_problem_status($id));
1.403 albertel 1706: &Apache::response::reset_params();
1707:
1.159 albertel 1708: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.259 albertel 1709: my $newtype=&Apache::lonnet::EXT("resource.$id.type");
1710: if ($newtype) { $Apache::lonhomework::type=$newtype; }
1.283 albertel 1711: my $in_order_show=&ordered_show_check();
1.214 albertel 1712: my $expression='$external::part=\''.$Apache::inputtags::part.'\';';
1.259 albertel 1713: $expression.='$external::type=\''.$Apache::lonhomework::type.'\';';
1.209 albertel 1714: &Apache::run::run($expression,$safeeval);
1.159 albertel 1715:
1716: if ($target eq 'meta') {
1.224 www 1717: my $display=&Apache::lonxml::get_param('display',$parstack,$safeeval);
1718: return &Apache::response::mandatory_part_meta.
1719: &Apache::response::meta_parameter_write('display','string',$display,'Part Description');
1.159 albertel 1720: } elsif ($target eq 'web' || $target eq 'grade' ||
1721: $target eq 'answer' || $target eq 'tex') {
1.283 albertel 1722: if ($hidden || !$in_order_show) {
1.326 albertel 1723: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,$style);
1.159 albertel 1724: } else {
1725: my ($status,$accessmsg) = &Apache::lonhomework::check_access($id);
1726: push (@Apache::inputtags::status,$status);
1727: my $expression='$external::datestatus="'.$status.'";';
1728: $expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$id.solved"}.'";';
1729: &Apache::run::run($expression,$safeeval);
1.284 albertel 1730: if ($env{'request.state'} eq 'construct') {
1.241 albertel 1731: &set_problem_state($Apache::inputtags::part);
1.240 albertel 1732: }
1.216 albertel 1733: if (( $status eq 'CLOSED' ) ||
1734: ( $status eq 'UNCHECKEDOUT') ||
1.252 albertel 1735: ( $status eq 'NOT_YET_VIEWED') ||
1.216 albertel 1736: ( $status eq 'BANNED') ||
1737: ( $status eq 'UNAVAILABLE') ||
1738: ( $status eq 'INVALID_ACCESS')) {
1.326 albertel 1739: my $bodytext=&Apache::lonxml::get_all_text("/part",$parser,
1740: $style);
1.159 albertel 1741: if ( $target eq "web" ) {
1.211 albertel 1742: $result="<br />".&mt('Part is not open to be viewed. It')." $accessmsg<br />";
1.159 albertel 1743: } elsif ( $target eq 'tex' ) {
1.284 albertel 1744: if (not $env{'form.problem_split'}=~/yes/) {
1.211 albertel 1745: $result="\\end{minipage}\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\\\begin{minipage}{\\textwidth}";
1.195 sakharuk 1746: } else {
1.211 albertel 1747: $result="\\vskip 0 mm ".&mt('Part is not open to be viewed. It')." $accessmsg \\\\";
1.195 sakharuk 1748: }
1.159 albertel 1749: }
1750: } else {
1751: if ($target eq 'tex') {
1.284 albertel 1752: if (not $env{'form.problem_split'}=~/yes/) {
1.264 sakharuk 1753: if ($$tagstack[-2] eq 'td') {
1.388 foxr 1754: $result.='\noindent \begin{minipage}{\textwidth}\noindent';
1.264 sakharuk 1755: } else {
1756: $result.='\noindent \end{minipage}\vskip 0 mm \noindent \begin{minipage}{\textwidth}\noindent';
1757: }
1.195 sakharuk 1758: }
1.159 albertel 1759: my $weight = &Apache::lonnet::EXT("resource.$id.weight");
1.284 albertel 1760: my $allkeys=&Apache::lonnet::metadata($env{'request.uri'},'packages');
1.222 sakharuk 1761: my @allkeys = split /,/,$allkeys;
1762: my $allow_print_points = 0;
1763: foreach my $partial_key (@allkeys) {
1.230 albertel 1764: if ($partial_key=~m/^part_(.*)$/) {
1.222 sakharuk 1765: if ($1 ne '0') {$allow_print_points=1;}
1766: }
1767: }
1.275 albertel 1768: my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
1769: if (defined($maxtries) && $maxtries < 0) {
1770: $allow_print_points=0;
1771: }
1.302 albertel 1772: if (lc($env{'course.'.$env{'request.course.id'}.
1773: '.disableexampointprint'}) eq 'yes') {
1774: $allow_print_points=0;
1775: }
1.222 sakharuk 1776: if (($Apache::lonhomework::type eq 'exam') && ($allow_print_points)) { $result .= '\fbox{\textit{'.$weight.' pt}}';}
1.233 www 1777: } elsif ($target eq 'web') {
1.356 www 1778: $result.='<a name="'.&escape($Apache::inputtags::part).'" />';
1.159 albertel 1779: }
1780: }
1781: }
1782: } elsif ($target eq 'edit') {
1783: $result.=&Apache::edit::tag_start($target,$token);
1784: $result.=&Apache::edit::text_arg('Part ID:','id',$token).
1785: &Apache::loncommon::help_open_topic("Part_Tag_Edit_Help").
1.224 www 1786: ' '.
1787: &Apache::edit::text_arg('Displayed Part Description:','display',$token).
1.159 albertel 1788: &Apache::edit::end_row().&Apache::edit::start_spanning_row();
1789: } elsif ($target eq 'modified') {
1790: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1.225 albertel 1791: $safeeval,'id','display');
1.159 albertel 1792: if ($constructtag) {
1.225 albertel 1793: #limiting ids to only letters numbers, and space
1.224 www 1794: $token->[2]->{'id'}=~s/[^A-Za-z0-9 ]//gs;
1.159 albertel 1795: $result = &Apache::edit::rebuild_tag($token);
1796: }
1797: }
1798: return $result;
1.11 albertel 1799: }
1800:
1801: sub end_part {
1.159 albertel 1802: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1803: &Apache::lonxml::debug("in end_part $target ");
1804: my $status=$Apache::inputtags::status['-1'];
1805: my $hidden=&Apache::loncommon::check_if_partid_hidden($Apache::inputtags::part);
1.283 albertel 1806: my $in_order_show=&ordered_show_check();
1.321 albertel 1807: my $result;
1808: if (!$Apache::lonxml::metamode) {
1809: $result = &Apache::lonxml::endredirection(); # started in &start_part
1.329 albertel 1810: $Apache::lonxml::post_evaluate=0;
1.321 albertel 1811: }
1.312 albertel 1812: if ($target eq 'grade') {
1.249 albertel 1813: if (($status eq 'CAN_ANSWER' || $Apache::lonhomework::scantronmode) &&
1.283 albertel 1814: !$hidden && $in_order_show) {
1.311 foxr 1815: $result.=&Apache::inputtags::grade;
1.249 albertel 1816: } else {
1817: # move any submission data to .hidden
1818: &Apache::inputtags::hidealldata($Apache::inputtags::part);
1819: }
1.283 albertel 1820: } elsif (($target eq 'web' || $target eq 'tex') &&
1821: !$hidden && $in_order_show) {
1.159 albertel 1822: my $gradestatus=&Apache::inputtags::gradestatus($Apache::inputtags::part,
1823: $target);
1.212 albertel 1824: if ($Apache::lonhomework::type eq 'exam' && $target eq 'tex') {
1825: $gradestatus='';
1826: }
1.311 foxr 1827: $result.=$gradestatus;
1.265 sakharuk 1828: if ($$tagstack[-2] eq 'td' and $target eq 'tex') {$result.='\end{minipage}';}
1.181 albertel 1829: } elsif ($target eq 'edit') {
1.311 foxr 1830: $result.=&Apache::edit::end_table();
1.322 albertel 1831: } elsif ($target eq 'modified') {
1832: $result .= $token->[2];
1.159 albertel 1833: }
1834: pop @Apache::inputtags::status;
1835: $Apache::inputtags::part='';
1.295 albertel 1836: $Apache::lonhomework::type = $Apache::lonhomework::default_type;
1.159 albertel 1837: return $result;
1.11 albertel 1838: }
1.1 albertel 1839:
1.25 albertel 1840: sub start_preduedate {
1.326 albertel 1841: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.339 albertel 1842: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1843: $target eq 'tex' || $target eq 'webgrade') {
1.236 albertel 1844: &Apache::lonxml::debug("State in preduedate is ". $Apache::inputtags::status['-1']);
1.300 albertel 1845: if (!$Apache::lonhomework::scantronmode &&
1846: $Apache::inputtags::status['-1'] ne 'CAN_ANSWER' &&
1.236 albertel 1847: $Apache::inputtags::status['-1'] ne 'CANNOT_ANSWER') {
1848: &Apache::lonxml::debug("Wha? ". ($Apache::inputtags::status['-1'] ne 'SHOW_ANSWER'));
1.326 albertel 1849: &Apache::lonxml::get_all_text("/preduedate",$parser,$style);
1.159 albertel 1850: }
1.24 albertel 1851: }
1.159 albertel 1852: return '';
1.24 albertel 1853: }
1854:
1.25 albertel 1855: sub end_preduedate {
1.159 albertel 1856: return '';
1.24 albertel 1857: }
1858:
1.369 foxr 1859: # In all the modes where <postanswerdate> text is
1860: # displayable, all we do is eat up the text between the start/stop
1861: # tags if the conditions are not right to display it.
1.25 albertel 1862: sub start_postanswerdate {
1.326 albertel 1863: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.370 foxr 1864: my $pav = &Apache::lonnet::allowed('pav', $env{'request.course.id'}) ||
1865: &Apache::lonnet::allowed('pav',
1866: $env{'request.course.id'}.'/'.$env{'request.course.sec'});
1.369 foxr 1867: if ($target eq 'web' || $target eq 'grade' || $target eq 'webgrade' ||
1.370 foxr 1868: $target eq 'tex' ) {
1.300 albertel 1869: if ($Apache::lonhomework::scantronmode ||
1.370 foxr 1870: $Apache::inputtags::status['-1'] ne 'SHOW_ANSWER' ||
1871: (($target eq 'tex') && !$pav)) {
1.326 albertel 1872: &Apache::lonxml::get_all_text("/postanswerdate",$parser,$style);
1.159 albertel 1873: }
1874: }
1875: return '';
1.24 albertel 1876: }
1877:
1.25 albertel 1878: sub end_postanswerdate {
1.159 albertel 1879: return '';
1.24 albertel 1880: }
1881:
1.25 albertel 1882: sub start_notsolved {
1.326 albertel 1883: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1884: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1.339 albertel 1885: $target eq 'tex' || $target eq 'webgrade') {
1.159 albertel 1886: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1887: &Apache::lonxml::debug("not solved has :$gradestatus:");
1.239 albertel 1888: if ($gradestatus =~ /^correct/ &&
1889: &Apache::response::show_answer()) {
1.159 albertel 1890: &Apache::lonxml::debug("skipping");
1.326 albertel 1891: &Apache::lonxml::get_all_text("/notsolved",$parser,$style);
1.159 albertel 1892: }
1.24 albertel 1893: }
1.159 albertel 1894: return '';
1.24 albertel 1895: }
1896:
1.25 albertel 1897: sub end_notsolved {
1.159 albertel 1898: return '';
1.24 albertel 1899: }
1900:
1901: sub start_solved {
1.326 albertel 1902: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1903: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1904: $target eq 'tex') {
1905: my $gradestatus=$Apache::lonhomework::history{"resource.$Apache::inputtags::part.solved"};
1.239 albertel 1906: if ($gradestatus !~ /^correct/ ||
1907: !&Apache::response::show_answer()) {
1.326 albertel 1908: &Apache::lonxml::get_all_text("/solved",$parser,$style);
1.159 albertel 1909: }
1.24 albertel 1910: }
1.159 albertel 1911: return '';
1.24 albertel 1912: }
1913:
1914: sub end_solved {
1.248 albertel 1915: return '';
1916: }
1917:
1918: sub start_problemtype {
1.326 albertel 1919: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.248 albertel 1920: my $result;
1.339 albertel 1921: if ($target eq 'web' || $target eq 'grade' || $target eq 'answer' ||
1922: $target eq 'tex' || $target eq 'analyze' || $target eq 'webgrade') {
1.248 albertel 1923: my $mode=lc(&Apache::lonxml::get_param('mode',$parstack,$safeeval));
1924: if (!defined($mode)) { $mode='show'; }
1925: my $for=&Apache::lonxml::get_param('for',$parstack,$safeeval);
1926: my $found=0;
1927: foreach my $type (split(',',$for)) {
1928: if ($Apache::lonhomework::type eq lc($type)) { $found=1; }
1929: }
1930: if ($mode eq 'show' && !$found) {
1.326 albertel 1931: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1932: }
1933: if ($mode eq 'hide' && $found) {
1.326 albertel 1934: &Apache::lonxml::get_all_text("/problemtype",$parser,$style);
1.248 albertel 1935: }
1936: } elsif ($target eq 'edit') {
1937: $result .=&Apache::edit::tag_start($target,$token);
1938: $result.=&Apache::edit::select_arg('Mode:','mode',
1939: [['show','Show'],
1940: ['hide','Hide']]
1941: ,$token);
1942: $result .=&Apache::edit::checked_arg('When used as type(s):','for',
1943: [ ['exam','Exam/Quiz Problem'],
1944: ['survey','Survey'],
1.428 raeburn 1945: ['problem','Homework Problem'],
1946: ['practice','Practice Problem'] ]
1.248 albertel 1947: ,$token);
1948: $result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
1949: } elsif ($target eq 'modified') {
1950: my $constructtag=&Apache::edit::get_new_args($token,$parstack,
1951: $safeeval,'mode','for');
1952: if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
1953: }
1954: return $result;
1955: }
1956:
1957: sub end_problemtype {
1.159 albertel 1958: return '';
1.24 albertel 1959: }
1.34 albertel 1960:
1961: sub start_startouttext {
1.159 albertel 1962: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1963: my @result=(''.'');
1964: if ($target eq 'edit' || $target eq 'modified' ) { @result=('','no'); }
1.404 albertel 1965:
1966: my $nesting =
1967: &Apache::lonxml::set_state('outtext',
1968: &Apache::lonxml::get_state('outtext')+1);
1969: if ($nesting > 1 && $env{'request.state'} eq 'construct') {
1970: &Apache::lonxml::error("Nesting of <startouttext /> not allowed, on line ".$token->[5]);
1971: }
1.159 albertel 1972: return (@result);
1.34 albertel 1973: }
1.159 albertel 1974:
1.34 albertel 1975: sub end_startouttext {
1.326 albertel 1976: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
1.159 albertel 1977: my $result='';
1978: my $text='';
1979: if ($target eq 'edit') {
1.424 foxr 1980: my $areaid = 'homework_edit_'.$Apache::lonxml::curdepth;
1.326 albertel 1981: $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.437 raeburn 1982: $result.=&Apache::edit::start_table($token)."<tr><td>".&mt('Text Block')."</td>"
1.438 bisitz 1983: .'<td><span class="LC_nobreak">'.&mt('Delete?').' '
1.437 raeburn 1984: .&Apache::edit::deletelist($target,$token)
1985: .'</span></td>';
1.425 raeburn 1986: unless ($env{'environment.wysiwygeditor'} eq 'on') {
1.434 foxr 1987: $result .= '<td align="left">'
1988: .&Apache::lonhtmlcommon::dragmath_button($areaid,1)
1989: .'</td>'
1990: .'<td>'
1991: .&Apache::edit::insertlist($target,$token)
1992: .'</td>';
1993: }
1.425 raeburn 1994: $result.='<td align="right" valign="top">' .
1.434 foxr 1995: &Apache::loncommon::helpLatexCheatsheet().
1.159 albertel 1996: &Apache::edit::end_row().
1.362 albertel 1997: &Apache::edit::start_spanning_row()."\n".
1.255 www 1998: &Apache::edit::editfield($token->[1],$text,"",80,8,1);
1.159 albertel 1999: }
2000: if ($target eq 'modified') {
1.219 albertel 2001: $result='<startouttext />'.&Apache::edit::modifiedfield("endouttext",$parser);
1.159 albertel 2002: }
2003: if ($target eq 'tex') {
2004: $result .= '\noindent ';
2005: }
2006: return $result;
1.34 albertel 2007: }
1.159 albertel 2008:
1.34 albertel 2009: sub start_endouttext {
1.159 albertel 2010: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2011: my $result='';
2012: if ($target eq "edit" ) { $result="</td></tr>".&Apache::edit::end_table()."\n"; }
2013: if ($target eq "modified") {
2014: $result='<endouttext />'.
1.377 albertel 2015: &Apache::edit::handle_insertafter('startouttext');
2016: }
1.404 albertel 2017:
2018: my $nesting =
2019: &Apache::lonxml::set_state('outtext',
2020: &Apache::lonxml::get_state('outtext')-1);
2021: if ($nesting < 0 && $env{'request.state'} eq 'construct') {
2022: &Apache::lonxml::error(" Extraneous <endouttext /> not allowed on line ".$token->[5]);
2023: &Apache::lonxml::set_state('outtext', 0);
2024: }
1.159 albertel 2025: return $result;
1.34 albertel 2026: }
1.159 albertel 2027:
1.34 albertel 2028: sub end_endouttext {
1.159 albertel 2029: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2030: my @result=('','');
2031: if ($target eq "edit" || $target eq 'modified') { @result=('','no'); }
2032: return (@result);
1.34 albertel 2033: }
1.159 albertel 2034:
1.45 albertel 2035: sub delete_startouttext {
1.326 albertel 2036: my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
2037: # my $text=&Apache::lonxml::get_all_text("endouttext",$parser,$style);
1.159 albertel 2038: my $text=$$parser['-1']->get_text("/endouttext");
2039: my $ntoken=$$parser['-1']->get_token();
2040: &Apache::lonxml::debug("Deleting :$text: and :$ntoken->[0]:$ntoken->[1]:$ntoken->[2]: for startouttext");
2041: &Apache::lonxml::end_tag($tagstack,$parstack,$ntoken);
2042: # Deleting 2 parallel tag pairs, but we need the numbers later to look like
2043: # they did the last time round
2044: &Apache::lonxml::increasedepth($ntoken);
2045: &Apache::lonxml::decreasedepth($ntoken);
2046: return 1;
1.193 www 2047: }
2048:
2049: sub start_simpleeditbutton {
2050: my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
2051: my $result='';
1.284 albertel 2052: if (($env{'form.simple_edit_button'} ne 'off') &&
1.273 albertel 2053: ($target eq 'web') &&
1.330 albertel 2054: (&Apache::lonnet::allowed('mdc',$env{'request.course.id'}))) {
1.284 albertel 2055: my $url=$env{'request.noversionuri'};
1.193 www 2056: $url=~s/\?.*$//;
1.367 albertel 2057: my ($symb) = &Apache::lonnet::whichuser();
1.451 bisitz 2058: # Warning makes more sense and is more important on edit screen
1.442 bisitz 2059: # $result='<p class="LC_warning">'
2060: # .&mt('Note: it can take up to 10 minutes for changes to take effect for all users.')
2061: # .&Apache::loncommon::help_open_topic('Caching')
2062: # .'</p>';
1.451 bisitz 2063: $result.=&Apache::lonhtmlcommon::start_funclist()
2064: .&Apache::lonhtmlcommon::add_item_funclist(
2065: '<a href="'.$url.'/smpedit?symb='.&escape($symb).'">'
2066: .&mt('Edit').'</a>')
2067: .&Apache::lonhtmlcommon::end_funclist();
1.442 bisitz 2068:
1.193 www 2069: }
2070: return $result;
2071: }
2072:
2073: sub end_simpleeditbutton {
2074: return '';
1.45 albertel 2075: }
1.34 albertel 2076:
1.428 raeburn 2077: sub practice_problem_header {
2078: return '<span class="LC_info"><h3>'.&mt('Practice Problem').'</h3></span>'.
2079: '<span class="LC_info">'.&mt('Submissions are not permanently recorded').
2080: '</span>';
2081: }
2082:
1.1 albertel 2083: 1;
2084: __END__
1.435 jms 2085:
2086: =pod
2087:
2088: =back
2089:
2090: =cut
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